Habib, N. Z., S. E. Zoorob, C. A. Ng, M. Zahiraniza, I. Kamaruddin, Y. A. Syafiq, S. Sumathi, N. Humayun, and M. M. Sohaib. “Environmentally Friendly Vege-Roofing Tile: An Investigation Study”. Academic Journal of Civil Engineering, Vol. 33, no. 2, June 2015, pp. 654-60, doi:10.26168/icbbm2015.101.